Pligg Support

Any gurus out there who might know why my error log is reporting this warning?

[07-May-2015 12:44:35] PHP Warning: Unknown column 'Array' in 'where clause' in /server/myid/public_html/libs/db.php on line 479
I have auto content scraper installed . Is there a feature or possibility that if a story is submitted on Facebook. It get a image from embedly embeded code. So it appear well on facebook share.
How to set the description can auto select from the url's first 3-4 sentences like google news?

i didn't see any similar posts on this topic. i'm having an intermittent issue (90% of the time), when sending a private message to new users, the result is a 404 page. the problem ONLY happens on accounts created by real users, not test users. having problems getting it to repro since i don't want to send a load of test messages to my new site users.

running OTnews by OxyThemes on Pligg 2.0.2.
With nginx twiter module dont work. 502 Bad Gateway
how can i limit pagination size?
i want to show all of current week story in default.(sort by time.)
englisch :
I have purchased from you a OTnewz Pligg Theme.
I paid, but not yet received.
In reported and written support, but it did not happen!

What should I do.

With best regards
Bahman Zahedi

German:Ich habe bei Ihnen ein OTnewz Pligg Theme gekauft.
Bezahlt habe ich, aber noch nicht bekommen.
Bei gemeldet und Support angeschrieben, aber es ist nicht passiert!

Was soll ich tun.

Mit freundlichen Gr├╝├čen
Bahman Zahedi
Pligg version: 2.0.2
PHP version: 5.5
MySQL version: 5.5.36-ccl-lve

Every single action will trigger a pair of this message in the error log:

PHP Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in {my website address}/class.compiler.php on line 246

I deleted 412 of these on a single day. Is this something that should be corrected or ignored altogether?
is OT-news theme for right to left language? i can help you to create full right to left pligg theme, i need your help and guidance for that.
this url :
for my user image location.
how can i remove ?cache-timestamp=.....
to solve my problem?